c# – 如何在代码中从.rdlc导出PDF时,如何提高LocalReport.Rende

我想在代码级别渲染大型非图形化报告(数千页),省略从.rdlc文件中抓住浏览器的ReportViewer控件.当我测试呈现2000页的报表时,Microsoft.Reporting.WebForms.LocalReport.Render方法大约需要半小时才能完成,这被认为是糟糕的用户体验.

有没有任何技巧或替代解决方案来提高渲染的性能：在代码中,重新设计.rdlc文件或其他地方,例如只是增加硬件？

示例代码：

LocalReport localReport = new LocalReport();
localReport.ReportPath = Server.MapPath("~/report.rdlc");

SetDataSources(ref localReport);

string reportType = "PDF";
string mimeType;
string encoding;
string fileNameExtension;

string deviceInfo =
"<DeviceInfo>" +
"  <OutputFormat>PDF</OutputFormat>" +
"  <PageWidth>8.5in</PageWidth>" +
"  <PageHeight>11in</PageHeight>" +
"  <MarginTop>0in</MarginTop>" +
"  <MarginLeft>0in</MarginLeft>" +
"  <MarginRight>0in</MarginRight>" +
"  <MarginBottom>0in</MarginBottom>" +
"</DeviceInfo>";
}

Warning[] warnings;
string[] streams;
byte[] renderedBytes;

//Render the report
renderedBytes = localReport.Render(
            reportType,deviceInfo,out mimeType,out encoding,out fileNameExtension,out streams,out warnings);

任何帮助非常感谢,谢谢提前！